首页
登录
职称英语
The concept of obtaining fresh water from icebergs that are towed to populat
The concept of obtaining fresh water from icebergs that are towed to populat
游客
2023-09-01
7
管理
问题
The concept of obtaining fresh water from icebergs that are towed to populated areas and arid regions of the world was once treated as a joke more appropriate to cartoons than real life. But now it is being【C1】______ quite seriously by many nations, especially since scientists have warned that the human race will【C2】______ its fresh water supply faster than it runs out of food.
Glaciers are a possible【C3】______ of fresh water that has been overlooked until recently. Throe-quarters of the Earth’s fresh water supply is still tied up in glacial ice, a reservoir of【C4】______ fresh water so immense that it could【C5】______ all the rivers of the world for 1,000 years. Floating on the oceans every year are 7,659 trillion metric tons of ice encased in 10,000 icebergs that break away from the polar ice caps, more than ninety percent of them from Antarctica.
Huge glaciers that【C6】______ over the shallow continental shelf give birth to icebergs throughout the year. Icebergs are not like sea ice, which is formed when the sea itself freezes, rather, they are formed【C7】______ on land, breaking off when glaciers spread over the sea. As they drift away from the polar region, icebergs sometimes move mysteriously in a direction【C8】______ to the wind, palled by subsurface currents. Because they melt more slowly than smaller pieces of ice, icebergs have been known to drift as far north as 35 degrees south of the equator in the Atlantic Ocean. To control them and【C9】______ them to parts of the world where they are needed would not be too difficult.
The difficulty arises in other technical matters, such as the prevention of rapid melting in warmer climates and the funneling(传送) of fresh water to shore in great volume. But even if the icebergs lost half of their volume in towing, the water they could provide would be far cheaper than that produced by desalinization (脱盐) , or【C10】______ salt from water.
A) removing F) resource K) similar
B) stretch G) outgrow L) source
C) deriving H) opposite M) ensured
D) entirely I) approximately N) sustain
E) untapped J) considered O) steer [br] 【C3】
选项
答案
L
解析
空格前面的冠词a表示此处需要可数名词单数形式,且与of一起连用。本句意为: Glaciers(冰川)是淡水的一个潜在的“来源”,由此可知词库中符合条件的名词为source。注意 resource指“资源”,a常用复数。另外,后一句中的a reservoir of______fresh water解释了 glacial ice,也表明Glaciers是淡水的一个“来源”。
转载请注明原文地址:https://tihaiku.com/zcyy/2976462.html
相关试题推荐
Wecanbeginourdiscussionof"populationasglobalissue"withwhatmostpe
Wecanbeginourdiscussionof"populationasglobalissue"withwhatmost
Wecanbeginourdiscussionof"populationasglobalissue"withwhatmost
Wecanbeginourdiscussionof"populationasglobalissue"withwhatmost
Wecanbeginourdiscussionof"populationasglobalissue"withwhatmost
Wecanbeginourdiscussionof"populationasglobalissue"withwhatmost
Theproblemofpopulationismainlyman-made.[br]Theenormousincreaseinpopu
Theproblemofpopulationismainlyman-made.[br]Twodifferentpointsaremade
Withrapidgrowthofworldpopulation,mainlyindevelopingcountries,thea
Withrapidgrowthofworldpopulation,mainlyindevelopingcountries,thea
随机试题
Themedicalwrongdoingdebateoftenpitsphysicians—whosaythethreatofla
Itseemstomethattoday’sprime-timeleaderneedsatop-5listthatclearl
Cancomputersreason?Reasoningrequirestheindividualtotakeagivenset
NoCreaturescanstrideashumanbeings.Theyarenotphysicallydesignedto
Treesarecityplanners’firstlineofdefenseinthe【S1】______againstthe
干式系统适用于环境温度不低于4℃且不高于70℃。()
阿片引起便秘的不良反应是A.罕见不良反应 B.已知的轻微不良反应 C.医疗事
甲公司2015年度销售收人900万元,确定的信用条件为“2/10,1/20,
以下关于各种围护结构特点错误的是( )。A.混凝土灌注桩刚度大、施工对环境影响小
关于屋面防水卷材铺贴时采用搭接法连接的说法,正确的有()。A.上下层卷材的
最新回复
(
0
)